Las Vegas Raiders running back Josh Jacobs (quadriceps) was held out of the team's walkthrough practice on Wednesday. Jacobs has two days left to get back onto the practice field, but if he doesn't, he'll be staring at a third straight absence for the Raiders. Fantasy managers that made it to their championship matchups in Week 17 should already be preparing to be without last year's leading rusher. When healthy, Jacobs has been a volume-based RB1/2. If he's forced to sit out for a third ...